Aeroplane



May 29, 1923. H FREY v AEROPLANE Filed Aug. 1, 1921 .l

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2 Sheets-Sheet 1 drfy 1 INVE TOR ATTORNEY May 29, 1923.

H. FREY AEROPLANE 2 Filed Aug. 1., 1921 2 Sheets-Sheet 2 firrj Trey ATI'ORNEY WITNESSE S,

244. AtHUNAU l IUS Patented May 29, 1923.

UNITED STATES era um PATENT OFFICE.

HARRY FREY, OF DU BOIS, NEBRASKA.

AEROPLANE.

Application filed August 1, 1921.

To all whom it may concern Be it known that I, HARRY FREY, a citizen of the United States, residing at Du Bois, in the county of Pawnee and State of Nebraska, have invented new and useful Improvements in Aeroplanes, of which the following is a specification.

This invention relates to improvements in aeroplanes, the general object of the invention being to provide a novel arrangement of bracing struts and hinged wings for per Initting the ship to occupy small hangars.

Another object of the invention it to provide sockets for detachably receiving the ends of some of the struts for holding the wings in extended and folded positions.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a front view of an aeroplane showing the wings in extended position.

Figure 2 is a similar view with the wings in folded position.

Figure 3 is a section on line 3-3 of Figure 1.

Figures 4 and 5 are detail Views.

In these views 1 indicates the fuselage of the ship, 2 the upper plane and 3 the lower plane. As will be seen the lower plane is of less length than the upper plane and the extended parts of the upper plane are hingedly connected with the central part, as shown at 4, so that these extended parts can be folded downwardly until they rest against the ends of the lower plane.

Serial No. 488,876.

Instead of using the wires for bracing the planes I use hollow struts 5, each set of which is arranged in the shape of the letter M. The outer strut 5 of each set is hingedly connected with the hinged wing and has its lower end removably seated in a socket 6, a pin 7 holding the strut in the socket. This socket is combined with the socket 8 which receives the central strut of each set. Sockets 6 are placed on the under side of the fuselage to receive the struts 5' when the wings are folded.

From the above it will be apparent that when the ship is not being used its wings can be folded and the ship placed in its hangar which may be made much smaller than would be necessary if the wings were not foldable. The hollow struts make the ship much stronger than is the case where the bracing wires are used and facilitates the movement of the foldable wings.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

WVhat I claim is An aeroplane having upper and lower wings, the upper wing having extended hinge portions, hollow struts bracing the wings, a socket member on the lower wing for detachably receiving the lower end of the strut which is connected with each foldable part and a socket on the fuselage for receiving said strut when the wing is folded.

In testimony whereof I affix my signa ture.

HARRY FREY. 

